DHCP Configuration for a SUN Ray

I am looking for information on how to configure DHCP on AIX for a SUN Ray DTU. Their documentation says that they use option 43 (vendor specific DHCP Options) and lists several options from 21 to 36. I would like to know the syntax on how to code this in my DHCP config file. for example they require:
Option Code: 21
Parameter Name: AuthSrvr
Client Class: SUNW.NewT.SUNW
Data Type: IP
Granularity: 1
Max Count: 1
Comments: Single Sun Ray server IP addresses